Build an analog clock whose hour, minute, and second hands point to the current time. It's two ideas together: the per-second timer (same as a digital clock) and the geometry — converting hours/minutes/seconds into rotation angles and spinning each hand with a CSS/SVG rotate transform.
// A self-contained component. No props.
function App(): JSX.Element;
A clock face with three rotating hands, updating every second.
3:00:00 -> hour hand points right (90 deg), minute + second straight up (0 deg)
second = s * 6 (360 / 60)
minute = m * 6 + s * 0.1 (creeps as seconds pass)
hour = (h % 12) * 30 + m * 0.5
transform="rotate(angle …)".